Nintendo Support: How to Reset the Wii Remote on Wii
Fleeting- External reference: https://en-americas-support.nintendo.com/app/answers/detail/a_id/2740/~/how-to-reset-the-wii-remote-on-wii
Take out the batteries, wait for one minute, and then reinsert them (there is no need to use new batteries). Wait a few seconds before pressing any buttons to wake up the Wii Remote. Resync the Wii Remote.